i hated oblivion for one simple thing...
if i so much as brushed up against someone the wrong way or poked into a crate i didn't know i was supposed to poke into, all the guards in the world would telepathically know i stole a dinner plate from a crate in the middle of bumfuck nowhere and i would then have to suffer losing levels and my items or be forced to kill them
yeah. that's not choice, that's just insanely retarded and the same reason i quit morrowind 5 hours in
EDIT: for anyone who wants to say "well that just makes your choices have consequences", then who the fuck designed a system where if i happened to take a fork lying in a house in the middle of the forest that every guard would SOMEHOW be alerted to this? no one fucking saw me, no one fucking even knew i existed (i did this at the very beginning of the game), and as far as i knew, i didn't even fucking know it was a crime yet!
yeah. none of that was fun.
but FALLOUT on the other hand? at least there i could shoot who i wanted and take what i wanted when i wanted it and wherever i wanted it without having to worry about losing anything more than a few karma points, because there i could be what i wanted to be, the most badass person to exist.